Comment 1 for bug 501181

Ok, I learnt a little about bash for this, so don't be cruel. I created a little script that allows to switch the enable/disable state of the touchpad. I hope it helps someone. Once you download it, open a terminal and run (in the folder you downloaded it):

chmod 755 altouchpad

7 to let the owner execute, read and write
5 to let the group execute and read
5 to let everyone else to execute and read

then copy it to /usr/bin :

sudo cp altouchpad /usr/bin/